Doorlock actuating mechanism



yJuly 28, 1931.

C. vJ. ULRICH DOORLOCK ACTUATING MEGHANISM Filed Jan. '7, 1929 2 Sheets-Sheet 1 July 2s, 1931. J, ULRICH l 1,816,504

DOORLOCK ACTUATING MECHANISM F1161 Jan. 7, 1929 2 sheets-sheer 2 4 j Je! 1 4.. :139 3A. 4Z u L line 3-3 of Fig. 2.

Patented 'July 28, 1,931

UNITI-:D STATES- PATENT OFFICE CARL J'. ULRICH, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR OF ONE-HALF TO PHILI I' E. CARLSON, 0F 'MINNEAPOLIS, MINNESOTA DOORLOCK ACTUATING .MECHANISI applicati@ sled January v, 1929. serial No. 330,810. y the bolts are adapted to be retracted by the I.

My present invention provides improved means for automatically locking a plurality of doors, and is especially adapted for application to the doors Vof an automobile. In the application of this, invention to an automobile body having four doors, a common controllerl would be arranged to simultaneously lock three of the doors, to wit all of the vdoors except the right-hand front door, which latter would be key-locked in the usual way. The lock controller would be preferably placed on the instrument board where, by a simple manipulation, the two rear doors and the left-hand front door would be simultaneously locked, thereby eleminating the heretofore necessary three operations to accomplish the same general result.

In the accompanying drawings, which illustrate the invention, like characters in dicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a diagrammatic view showing in side elevation the two doors which may be assumed to be on the left-hand side or the car, looking at the same from the interior of the car; y

Fig. 2 is a view partly in elevation and partly in diagram and with some parts removed showing the lock mechanism and th common lock actuator; and

Fig. 3 is a detail in section taken onthe rlhe doors of the car are indicated by the numeral 4,'the same being hinged in the customary way vat 5. The door locks may be of any suitable construction, but, as shown, are of standard construction except as modified for the application of the present invention.

Said locks are mounted in casings 6 and are provided with sliding bolts 7 which when projected, engage detents or lock recesses 8 formed in the door jambs 9' and cut through a latch plate 9a. The lock boltsl 7 have the cus-Y tomary beveled outer endsfor automatically iatching the doors and are spring-pressed outward by springs 10. As shown, these bolts are adapted to be retracted. from the inner side of the door by the customary pivoted handles A11 connected to the bolts'vby links 12. From the outer sides of the doors,

customary handles 13, the stems of which within the lock cases 6 are provided with short arms 14 that are engagable with the lugs 15 on the respective lock bolts. The lock bolts can be retracted by operation of the-inside handles Without moving the outer handles 13 and conversely the said bolts can be retracted by manipulation of the outer handles without necessarily moving the inner handles 11 due to slot and pin connections 11a between said handles 11 and links 12. The lock mechanism so far described may be assumed to be that of a standard automobile.

For the application of the improved lockactuating mechanism, a pair of opposing magnets 16 and 17 are mounted Within the lock case 6 and arranged between and subject to action of these magnets is an armature in the form of an arm 18 pivotedlto the lock casing at 19. rlhe free end of the arm 18 is connected by a link 20 to one end of a lock dog 21 that is intermediately pivoted to the lock case at 22 and has a. lock lug or nose 23A normally engagable with the lock lug 24' on the hub of the arnr14. Obviously, with this construction, the lock bolt 7 can always be retracted by manipulation of the inside handle 11, but cannot be retracted to unlock l the door by manipulation of the outside handle as long as the lug 23 ofthe lock dog 21.is

ment is prevented by the lock dog. When arm 18 is forced downward, however, lock dog 21 will-release itself from lug 24and then the outside handle of the door can be the door. p

As above indicated, there`1s a common conmanipulated to retract the lock bolt and open troller for simultaneously actuating the locks v and 17, but as its primary element it includes 4 a commonpswitch lever 25 mounted on a pro- The other sides of thev magnets '26' and 27 are grounded, respectively, through leads 33 and 341.l The switch le /er v25 is provided on itsl f hub with a cam-acting surface 35 that is engaged by a spring-pressed metallic .plunger 36, shown as spring mounted ina hearing 37 suitably connected to or otherwise relatively fixed in respect to the instrument boardl 27. The bearing 27 which has an electrical conductor, is connected by a lead 38't0 a battery 39 which, in practice, may be an ordinary car battery grounded in the customary way.

The spring-pressed plunger 36 performs two functions, to wit: in the first place, it serves as an electrical contact that maintains engagement with the switch lever 25 and, in

the second, place, it operates on the cam suro face 35'to normally hold the switch lever 25 slightly out of enga ement with the contact 29 or 30 with which 1t has just been engaged by downward pressure.

When the switch lever 25 is engaged with the contact 30, the circuit will be closed through the magnet 17 and the arm 18 will be drawn downward, thereby moving ythe lock dog 21 into a lock-releasing posltion. As soon, however, as the lever 25 has been released after thus closing the circuit, it -will Y by spring-pressed plunger 36, be moved up- `wardand just slightly out of engagement with the contact 30, thereby breaking the circuit so that the current is called upon to operate only for an instant. When lever 25 is` moved into engagement with the contact 29, the circuit'through the upper magnet 16 will be closed, thereby moving arm 18 upward and moving lock dog 21 into its locking position shown in Fig. 2; and as -soon as the lever 25 is then released, it will, by the springpressed plunger 26, be moved slightly out of engagement with the contact 29 as shown in Fi 2, thereby again breaking the circuit.

o yieldingly hold lever 18 in 'raised or lowered positlon according to the position in which it may be set when said lever is not-.subject to either electro-magnet, there is provided a yielding retainer in the form of a fiat leaf spring 40 shown as secured at one end to a block 41 on the lock casing, see Fi s. 2 and 3. This spring retainer 40 is provide with two indentations 42 and 43, the former of which yieldin 1y holds said lever.v in a raised position an the latter of which yieldingly holds the same in alowered 'osit1on. rOf course, the electro-ma ets wil overcome the spring retainer 40 an move the lever when one or the other of said magnets are energized.

Attention is now called to the fact that electrical connections between leads on the doorV that are engaged when the doorsare closed.

and the leads 33and 34 are grounded through certain of the door hinges 5.y

Vith the Vabove described lock-actuated mechanism, bythe simplest kind of a manipulation, the operator can lock all of the doors of the car except the one door before leaving the car and, of course, when the last door is locked with the key, access to the actuating mechanism is cut off. Also the three doors can be instantly released by a simple movement of the switch lever 25 when. the personsreenters the car. The device is eX- tremely simple, highly eiiicient, and very convenient and; reliableI in its action.

What I claim is: p. l

1. .The combination with a plurality of doors equipped with locks having retractable lock bolts and outside and inside bolt-retracting handles of lock dogs for securing'said outside handles ,in non-turnable positions, and a common controller having connections the former aresecured against bolt-retracting movement, lock dogs operative to hold said outer .handles against bolt-releasing movement, co-operating armature-actin members having connections for moving said dogs into operative and inoperative positions,

two opposed classes of magnets operating on v said armature-connecting members to impart reverse movements thereto, and a divided circuit including said opposed electro-magnets, and a common switch movable into one position to close the circuits through .one class of said magnets and into another position to close the circuits through the other class of said magnets.

3. The structure defined in claim 2 in fur` ther combination with yieldingmeans normally holding said switch in circuit-opening position.

4. The structure defined in claim 1 in which said common controller has opposing electro- A magnets for action on the several lock dogs,

and circuit connections to said magnets havmg a common controllin switch.

n testimony whereof aiiix m signature. CARL J. RICH. 

